Cameroon GCE ordinary level June 2025 physics 2

Posted on June 10, 2025 by T- frank

Cameroon GCE ordinary level June 2025 physics 2

SECTION I
Answer nil questions in one hour.
1. (a) Define force (2 marks)
(b) Friction and weight are two examples of forces.
(i) State one situation in daily life in which frictional force acts on an object.
(ii) State a difference between these forces.
( I mark )
(2 marks)

2. (a) A glass rod is charged by rubbing with a piece of cloth.
(i) State the type of charge acquired by the glass rod.
(ii) Explain the origin of the charge acquired by the rod.

. „
( I mark )
(2 marks)

(b) You are provided with an uncharged metal sphere, A, and a positively charged rod, B, as shown in ligure 1.
++
t X
B
Figure I
(i) Using sketch diagrams outline the steps you would follow to charge the sphere.
(ii) Name the method of charging used.
(4 marks)
( I mark )
(2 marks)
(2 marks)
( I mark )
3. (a) Define critical angle.
(b) (i) State the conditions necessary for total internal reflection to occur,
(ii) Name one application of total internal reflection.
4. A student places her mouth at one end of a U–shaped tube containing water of densitylOOO kg m 3. She sucks and
causes a displacement as shown in figure 2.

A	D
C m f£ 13 cm	B

10 cm 4
Figure 2
(a) (i) Using a letter on the diagram, state where she places her mouth,
(ii) Explain why the displacement occurs.
(b) Determine the pressure difference caused by the sucking.

(i) Identify the meters Mj and M2.
(ii) State a property of each meter which makes it suitable for the connection as shown.
(2 marks)
(2 marks)
(b) Determine:
(i) The combined resistance in the circuit.
(ii) The current in the circuit.
(3 marks)
(3 marks)
6. (a) ( i) State the basic law of magnetism.
(ii) Name one material which may be attracted by a magnet and one other material which may
not be attracted by a magnet.
(b) Draw a diagram to show the magnetic flux pattern between two unlike poles of magnets placed
near each other.
(2 marks )
(2 marks)
(2 marks)